Analysis on Salt and Soil Component on Corrosion for Decorative Chrome Plating

Abstract

The specific dissolution and exfoliation of chrome plating in Russia is studied. As a result of investigation and analysis of organic compounds in Russian soil, it was found they contained high concentrations of fulvic acid. Additionally, it was found that fulvic acid, together with CaCl₂ (a snow melting agent), cause chrome plating corrosion. The fulvic acid generates a compound which prevents the reformation of the passivation film and which deteriorates the effect of sacrificial protection of nickel for corrosion.